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Showing 1–3 of 3 results

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Evidence for light-by-light scattering in heavy-ion collisions with the ATLAS detector at the LHC

Quantum electrodynamics predicts a rare process in which light is scattered by light. The ATLAS Collaboration reports signs of this elusive effect in the collisions of ultra-relativistic lead ions.

M. Aaboud
G. Aad
L. Zwalinski
ResearchOpen Access14 Aug 2017
Nature Physics

Volume: 13, P: 852-858
Demonstration of stellar intensity interferometry with the four VERITAS telescopes

Stellar intensity interferometry (SII) is undergoing a revival. Here, data from the four 12 m optical reflectors of the VERITAS array are correlated post facto to determine the angular diameter of two stars to a high precision, laying the groundwork for SII at future large Cherenkov arrays.

A. U. Abeysekara
W. Benbow
T. J. Williamson
Research20 Jul 2020
Nature Astronomy

Volume: 4, P: 1164-1169
Direct measurement of stellar angular diameters by the VERITAS Cherenkov telescopes

Using large-aperture Cherenkov telescopes, Benbow et al. have measured the angular sizes of two stars through timely occultations by asteroids, achieving an order of magnitude improvement in resolution over the lunar occultation method.

W. Benbow
R. Bird
T. J. Williamson
Research15 Apr 2019
Nature Astronomy

Volume: 3, P: 511-516